CVE-2018-0733 (GCVE-0-2018-0733)

Vulnerability from cvelistv5 – Published: 2018-03-27 21:00 – Updated: 2024-09-16 20:46
VLAI
Title
Incorrect CRYPTO_memcmp on HP-UX PA-RISC
Summary
Because of an implementation bug the PA-RISC CRYPTO_memcmp function is effectively reduced to only comparing the least significant bit of each byte. This allows an attacker to forge messages that would be considered as authenticated in an amount of tries lower than that guaranteed by the security claims of the scheme. The module can only be compiled by the HP-UX assembler, so that only HP-UX PA-RISC targets are affected. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g).
Severity
No CVSS data available.
CWE
  • Message forgery
Assigner
openssl CNA under the mitre root
CNA scorecard B 78/100 over 43 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
OpenSSL OpenSSL Affected: Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g)
guessed Create a notification for this product.
Date Public
2018-03-27 00:00
Credits
Peter Waltenberg (IBM)
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T03:35:49.271Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.tenable.com/security/tns-2018-07"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.tenable.com/security/tns-2018-04"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
          },
          {
            "name": "GLSA-201811-21",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/201811-21"
          },
          {
            "name": "103517",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/103517"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.tenable.com/security/tns-2018-06"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20180330-0002/"
          },
          {
            "name": "1040576",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1040576"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=56d5a4bfcaf37fa420aef2bb881aa55e61cf5f2f"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.openssl.org/news/secadv/20180327.txt"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "OpenSSL",
          "vendor": "OpenSSL",
          "versions": [
            {
              "status": "affected",
              "version": "Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g)"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Peter Waltenberg (IBM)"
        }
      ],
      "datePublic": "2018-03-27T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Because of an implementation bug the PA-RISC CRYPTO_memcmp function is effectively reduced to only comparing the least significant bit of each byte. This allows an attacker to forge messages that would be considered as authenticated in an amount of tries lower than that guaranteed by the security claims of the scheme. The module can only be compiled by the HP-UX assembler, so that only HP-UX PA-RISC targets are affected. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g)."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "lang": "eng",
              "url": "https://www.openssl.org/policies/secpolicy.html#Moderate",
              "value": "Moderate"
            },
            "type": "unknown"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Message forgery",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-07-23T22:31:34.000Z",
        "orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
        "shortName": "openssl"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.tenable.com/security/tns-2018-07"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.tenable.com/security/tns-2018-04"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
        },
        {
          "name": "GLSA-201811-21",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/201811-21"
        },
        {
          "name": "103517",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/103517"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.tenable.com/security/tns-2018-06"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20180330-0002/"
        },
        {
          "name": "1040576",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1040576"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=56d5a4bfcaf37fa420aef2bb881aa55e61cf5f2f"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.openssl.org/news/secadv/20180327.txt"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html"
        }
      ],
      "title": "Incorrect CRYPTO_memcmp on HP-UX PA-RISC",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "openssl-security@openssl.org",
          "DATE_PUBLIC": "2018-03-27",
          "ID": "CVE-2018-0733",
          "STATE": "PUBLIC",
          "TITLE": "Incorrect CRYPTO_memcmp on HP-UX PA-RISC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "OpenSSL",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g)"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "OpenSSL"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Peter Waltenberg (IBM)"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Because of an implementation bug the PA-RISC CRYPTO_memcmp function is effectively reduced to only comparing the least significant bit of each byte. This allows an attacker to forge messages that would be considered as authenticated in an amount of tries lower than that guaranteed by the security claims of the scheme. The module can only be compiled by the HP-UX assembler, so that only HP-UX PA-RISC targets are affected. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g)."
            }
          ]
        },
        "impact": [
          {
            "lang": "eng",
            "url": "https://www.openssl.org/policies/secpolicy.html#Moderate",
            "value": "Moderate"
          }
        ],
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Message forgery"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.tenable.com/security/tns-2018-07",
              "refsource": "CONFIRM",
              "url": "https://www.tenable.com/security/tns-2018-07"
            },
            {
              "name": "https://www.tenable.com/security/tns-2018-04",
              "refsource": "CONFIRM",
              "url": "https://www.tenable.com/security/tns-2018-04"
            },
            {
              "name": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html",
              "refsource": "CONFIRM",
              "url": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html"
            },
            {
              "name": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html",
              "refsource": "CONFIRM",
              "url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
            },
            {
              "name": "GLSA-201811-21",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/201811-21"
            },
            {
              "name": "103517",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/103517"
            },
            {
              "name": "https://www.tenable.com/security/tns-2018-06",
              "refsource": "CONFIRM",
              "url": "https://www.tenable.com/security/tns-2018-06"
            },
            {
              "name": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html",
              "refsource": "CONFIRM",
              "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20180330-0002/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20180330-0002/"
            },
            {
              "name": "1040576",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1040576"
            },
            {
              "name": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=56d5a4bfcaf37fa420aef2bb881aa55e61cf5f2f",
              "refsource": "CONFIRM",
              "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=56d5a4bfcaf37fa420aef2bb881aa55e61cf5f2f"
            },
            {
              "name": "https://www.openssl.org/news/secadv/20180327.txt",
              "refsource": "CONFIRM",
              "url": "https://www.openssl.org/news/secadv/20180327.txt"
            },
            {
              "name": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
            },
            {
              "name": "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
    "assignerShortName": "openssl",
    "cveId": "CVE-2018-0733",
    "datePublished": "2018-03-27T21:00:00.000Z",
    "dateReserved": "2017-11-30T00:00:00.000Z",
    "dateUpdated": "2024-09-16T20:46:46.842Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2018-0733",
      "date": "2026-11-03",
      "epss": "0.08281",
      "percentile": "0.94924"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "322768B5-2E14-40B9-A784-8981F4376E13",
                  "versionEndIncluding": "1.1.0g",
                  "versionStartIncluding": "1.1.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Because of an implementation bug the PA-RISC CRYPTO_memcmp function is effectively reduced to only comparing the least significant bit of each byte. This allows an attacker to forge messages that would be considered as authenticated in an amount of tries lower than that guaranteed by the security claims of the scheme. The module can only be compiled by the HP-UX assembler, so that only HP-UX PA-RISC targets are affected. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g)."
        },
        {
          "lang": "es",
          "value": "Debido a un error de implementaci\u00f3n, la funci\u00f3n CRYPTO_memcmp en PA-RISC \u00fanicamente compara el bit menos significativo o de menor peso de cada byte. Esto permite que un atacante falsifique mensajes que se considerar\u00edan como autenticados en una cantidad de intentos menor que los que aseguran las garant\u00edas de seguridad del esquema. El m\u00f3dulo solo se puede compilar con un ensamblador HP-UX, de forma que solo se ven afectados los PA-RISC de HP-UX. Solucionado en OpenSSL 1.1.0h (versiones 1.1.0-1.1.0g afectadas)."
        }
      ],
      "id": "CVE-2018-0733",
      "lastModified": "2024-11-21T03:38:49.937",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "MEDIUM",
            "cvssData": {
              "accessComplexity": "MEDIUM",
              "accessVector": "NETWORK",
              "authentication": "NONE",
              "availabilityImpact": "NONE",
              "baseScore": 4.3,
              "confidentialityImpact": "NONE",
              "integrityImpact": "PARTIAL",
              "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
              "version": "2.0"
            },
            "exploitabilityScore": 8.6,
            "impactScore": 2.9,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ],
        "cvssMetricV30": [
          {
            "cvssData": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.9,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
              "version": "3.0"
            },
            "exploitabilityScore": 2.2,
            "impactScore": 3.6,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2018-03-27T21:29:00.610",
      "references": [
        {
          "source": "openssl-security@openssl.org",
          "url": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html"
        },
        {
          "source": "openssl-security@openssl.org",
          "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"
        },
        {
          "source": "openssl-security@openssl.org",
          "tags": [
            "Third Party Advisory",
            "VDB Entry"
          ],
          "url": "http://www.securityfocus.com/bid/103517"
        },
        {
          "source": "openssl-security@openssl.org",
          "tags": [
            "Third Party Advisory",
            "VDB Entry"
          ],
          "url": "http://www.securitytracker.com/id/1040576"
        },
        {
          "source": "openssl-security@openssl.org",
          "url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=56d5a4bfcaf37fa420aef2bb881aa55e61cf5f2f"
        },
        {
          "source": "openssl-security@openssl.org",
          "url": "https://security.gentoo.org/glsa/201811-21"
        },
        {
          "source": "openssl-security@openssl.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20180330-0002/"
        },
        {
          "source": "openssl-security@openssl.org",
          "tags": [
            "Vendor Advisory"
          ],
          "url": "https://www.openssl.org/news/secadv/20180327.txt"
        },
        {
          "source": "openssl-security@openssl.org",
          "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
        },
        {
          "source": "openssl-security@openssl.org",
          "url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
        },
        {
          "source": "openssl-security@openssl.org",
          "url": "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html"
        },
        {
          "source": "openssl-security@openssl.org",
          "url": "https://www.tenable.com/security/tns-2018-04"
        },
        {
          "source": "openssl-security@openssl.org",
          "url": "https://www.tenable.com/security/tns-2018-06"
        },
        {
          "source": "openssl-security@openssl.org",
          "url": "https://www.tenable.com/security/tns-2018-07"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory",
            "VDB Entry"
          ],
          "url": "http://www.securityfocus.com/bid/103517"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory",
            "VDB Entry"
          ],
          "url": "http://www.securitytracker.com/id/1040576"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=56d5a4bfcaf37fa420aef2bb881aa55e61cf5f2f"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://security.gentoo.org/glsa/201811-21"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20180330-0002/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Vendor Advisory"
          ],
          "url": "https://www.openssl.org/news/secadv/20180327.txt"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://www.tenable.com/security/tns-2018-04"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://www.tenable.com/security/tns-2018-06"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://www.tenable.com/security/tns-2018-07"
        }
      ],
      "sourceIdentifier": "openssl-security@openssl.org",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "NVD-CWE-noinfo"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "322768B5-2E14-40B9-A784-8981F4376E13",
                    "versionEndIncluding": "1.1.0g",
                    "versionStartIncluding": "1.1.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Because of an implementation bug the PA-RISC CRYPTO_memcmp function is effectively reduced to only comparing the least significant bit of each byte. This allows an attacker to forge messages that would be considered as authenticated in an amount of tries lower than that guaranteed by the security claims of the scheme. The module can only be compiled by the HP-UX assembler, so that only HP-UX PA-RISC targets are affected. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g)."
          },
          {
            "lang": "es",
            "value": "Debido a un error de implementaci\u00f3n, la funci\u00f3n CRYPTO_memcmp en PA-RISC \u00fanicamente compara el bit menos significativo o de menor peso de cada byte. Esto permite que un atacante falsifique mensajes que se considerar\u00edan como autenticados en una cantidad de intentos menor que los que aseguran las garant\u00edas de seguridad del esquema. El m\u00f3dulo solo se puede compilar con un ensamblador HP-UX, de forma que solo se ven afectados los PA-RISC de HP-UX. Solucionado en OpenSSL 1.1.0h (versiones 1.1.0-1.1.0g afectadas)."
          }
        ],
        "id": "CVE-2018-0733",
        "lastModified": "2024-11-21T03:38:49.937",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "MEDIUM",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 4.3,
                "confidentialityImpact": "NONE",
                "integrityImpact": "PARTIAL",
                "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 8.6,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.9,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
                "version": "3.0"
              },
              "exploitabilityScore": 2.2,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2018-03-27T21:29:00.610",
        "references": [
          {
            "source": "openssl-security@openssl.org",
            "url": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html"
          },
          {
            "source": "openssl-security@openssl.org",
            "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"
          },
          {
            "source": "openssl-security@openssl.org",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/103517"
          },
          {
            "source": "openssl-security@openssl.org",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securitytracker.com/id/1040576"
          },
          {
            "source": "openssl-security@openssl.org",
            "url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=56d5a4bfcaf37fa420aef2bb881aa55e61cf5f2f"
          },
          {
            "source": "openssl-security@openssl.org",
            "url": "https://security.gentoo.org/glsa/201811-21"
          },
          {
            "source": "openssl-security@openssl.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20180330-0002/"
          },
          {
            "source": "openssl-security@openssl.org",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://www.openssl.org/news/secadv/20180327.txt"
          },
          {
            "source": "openssl-security@openssl.org",
            "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
          },
          {
            "source": "openssl-security@openssl.org",
            "url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
          },
          {
            "source": "openssl-security@openssl.org",
            "url": "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html"
          },
          {
            "source": "openssl-security@openssl.org",
            "url": "https://www.tenable.com/security/tns-2018-04"
          },
          {
            "source": "openssl-security@openssl.org",
            "url": "https://www.tenable.com/security/tns-2018-06"
          },
          {
            "source": "openssl-security@openssl.org",
            "url": "https://www.tenable.com/security/tns-2018-07"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/103517"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securitytracker.com/id/1040576"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=56d5a4bfcaf37fa420aef2bb881aa55e61cf5f2f"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://security.gentoo.org/glsa/201811-21"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20180330-0002/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://www.openssl.org/news/secadv/20180327.txt"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.tenable.com/security/tns-2018-04"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.tenable.com/security/tns-2018-06"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.tenable.com/security/tns-2018-07"
          }
        ],
        "sourceIdentifier": "openssl-security@openssl.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T21:52:48+00:00",
      "cve": "CVE-2018-0733",
      "id": "CVE-2018-0733",
      "initial_release_date": "2018-03-27T00:00:00+00:00",
      "product_status:known_not_affected": "29",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "openssl: Implementation bug in PA-RISC CRYPTO_memcmp function allows attackers to forge authenticated messages in a reduced number of attempts",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-0733.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-26T00:26:21Z",
      "cve": "CVE-2018-0733",
      "id": "CVE-2018-0733",
      "initial_release_date": "2023-02-15T04:34:46Z",
      "product_status:known_not_affected": "68",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2018-0733",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2018-0733.json",
      "version": "10"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.